williams



(No Model.)

L. H. WILLIAMS.

WATER HEATER.

No. 597,927. Patented Jan. Z5, 1898.

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UNITED STATES PATENT OEEICE.

LEE I-I. WILLIAMS, OF INDIANAPOLIS, INDIANA, ASSIGNOR OF ONE-HALF TO THEHCELVVAINE-RIOHARDS COMPANY, OF SAME PLACE.

WATER-HEATER.

SPECIFICATION forming part of Letters Patent No. 597,927, dated January25, 1898.

Application filed June 16, 1897. Serial No. 641,050. (No model.)

To ctZZ whom it may concern:

Be it known that I, LEE H. NVILLIAMS, of Indianapolis, county of Marion,and State of Indiana, have invented a certain new and usefulWater-Heater; and l do hereby declare that the following is a full,clear, and exact description thereof, reference beinghad to theaccompanying drawings, in which like numerals refer to like parts.

My invention relates to water-heaters employed chiefly in houses fordomestic use.

The object of the invention is to secure a heater that is simple ofconstruction, strong and durable, economical, and more efficient thansimilar devices heretofore made.

One feature of the invention consists in making the water-chamber of theheater of one piece by casting the same, so as to bring about increasedstrength and diminution in size and an increase in the comparativeheating efficiency.

Another feature is to render it possible to remove incrustations fromthe inner surface of the water-chamber without removing the heater fromthe boiler and to otherwise make such operation simple and easy.

Another feature is to construct the fueloutlet so that back drafts willnot blow out the gas or re.

There are other features of invention which will be understood from thedescription and claims following and the accompanying drawings.

In the drawings, Figure l is a vertical section of the hot-water boilerand heater with the necessary pipes and appurtenances thereto attached.Fig. 2 is a section on the line 2 2 of Fig. l. Fig. 3 is a bottom viewof the heater on the line 3 3 of Fig. l.

In det-ail, 1 is a suitable stand for the hotwater tank or boiler 2. 3is a suitable inletpipe for the cold water, While t is an outletpipe forthe hot water from said tank or boiler. 5 is an outlet-pipe from thetank or boiler leading to the heater, and 6 is a pipe leading from theheater to the boiler. The hea-ter consists of a hot-water chamber 7,with an opening at its upper end which is closed by the disk or plate 8.The waterchamber 7 of the heater is preferably cast in substantially theform shown. In forming or casting the same a tapering extension 13 eX-tends centrally from the lower end partially through the chamber formingthe heatingchamber 9. At the lower end of this heatingchamber thegas-burner l0 or any suitable burner is located,so that the flametherefrom will strike the water-chamber at its lower end and extend upalmost to the chimney or hotair pipe l2, which leads from the upper endof the extension 13, as shown. A gas-pipe 1l supplies the burner 10. Theburner is prevented from extending so far up that the flames therefromwill not come in contact with the lower part of the water-chamber bymeans of the arms 24, secured to a collar that is fastened on thegas-pipe just below the burner. The length of the arms is such that theycome in contact with the lower part of the chamber and prevent theburner from being placed too high.

The extension 13, that forms the heatingchamber 9, is at its lower endsome distance from the outer Wall of the chamber '7. At least sufficientroom is thereby provided for the entrance of the pipe 5, leading fromthe boiler,

and for the holes closed by the nuts or plugs '14. Preferably three ofthese openings are provided besides the one through which the pipe 3enters.

The outside wall of the water-chamber 7 extends vertically for somedistance and then is contracted, so that the volume of water surroundingthe upper part of the inner wall lis greater than that which surroundsthe lower part or base, because at the upper part the heat is greaterthan it is below. By this construction, therefore, the volume of wateris in proportion to the extent of heat that is applied to it. Around theupper part of the opening of the water-chamber 7 I provide an annularhorizontal flange l5, to which the closing-plate 8 is bolted securely.This plate has a central opening in it for the pipe l2 and a verticalannular collar 16 of greater diameter than the pipe l2. Between thiscollar and the pipe suitable packing, asbestos wick being preferable, isplaced. To hold said packing in place, a second or upper plate 17 isbolted to the lower plate 8. Said upper plate has a downwardly-extendingannular collar 20 large enough to pass over the annular col- IOC) vthatpasses through the pipe l2.

lar 16 on the lower plate, and an annular recess in said upper plateadjacent to said collar is made to snugly receive the upper end of thecollar 16 on the lower plate 8. By screwing down said plate tightly thepacking is greatly compressed around the pipe 1 2, so as to prevent anyescape of the heated water.

Detachably secured about the upper plate 17 there is a conical ortapering pipe 2l, leading to the outlet-pipe 22 for the purpose ofconveying the hot air from the burner below The pipe 12 extends into thetapering outlet-pipe 21 about half-way. The plate 17 is provided with aseries of holes 23, through which air can pass into the pipe 21 andoutlet-pipe 22; but the main function of said opening 23 is to serve asan outlet for any back draft that may be caused by any means downthrough the pipe 22 and conical pipe 2].. Such back draft, by escapethrough the openings 23, it is obvious will not blow out the fire belowin lthe burner 10. This is of value because a sudden back draft isliable to blow out the 'flame and leave the gas escaping very rapidly,whereby an explosion may result.

In this description it will be observed that the incrustations that maybe formed on the inner surface of the water-chamber can be removedwithout removing said water-chamber or separating it from the boiler.This is done by removing the plate 8 after loosening the bolts thatsecure it to the water-chamber. Then through the opening in the upperend of the water-chambera chisel or other implement can be introducedfor loosening the incrustations. The particles of material thus loosenedare removed through any of the holes in the bottom of the water-chamberafter removing the plugs 14, that close them. In fact the hand can beintroduced in the opening at the upper end of the water-chamber. Thismode of cleaning the water-chamber is a very simple and effective one,without disturbing the water-tight joints of the connection between thewater-chamber and the boiler.

Vhat I claim as my invention, and desire to secure by-Letters Patent, is

l. A water-heating apparatus including a water-chambercontracted andopen at its upper end with an annular flange surrounding such openingand with the central portion of its bottom extending upward and taperingto form a heating-chamber and holes in the bottom of the water-chamber,a plate for closing the opening at the upper end bolted to said annularflange, and detachable plugs for closing the holes in the lower end ofsuch waterchamber, substantially as set forth.

2. In a water-heating apparatus, the combination with a suitable burner,of a water chamber with a central upward extension from the bottomsurrounding said burner, an outlet-pipe leading upward from the upperend of said extension for the escape of the gases from the burner, apair of plates for closing the upper opening in said water-chamber andsurrounding said pipe, the lower of said plates being secured by boltsto lsaid water-chamber and having an annular collar on its upper sidesurrounding said outlet-pipe, packing filled in said annular collararound said pipe, and the upper one of said plates being secured to thelower one by bolts and having a downwardly extending annular flange thatsnugly surrounds the annular flange from the plate below, substantiallyas set forth. f

3. In a water-heating apparatus, the combination with a burner, of awater-chamber with a passage centrally upward through the LEE H.WILLIAMS.

Witnesses:

V. H. LocKwooD, ZULA GREEN.

